Re: * 4 converted to << 2 for networking code

[Jamie Lokier]

Mike Harrold wrote:
> Be careful. *4 is not a simple <<2 substitution (by the compiler) if
> the variable is signed. *4 translates to 3 instructions (on x86) if
> it's an int.

I think you mean /4 is not the same as >>2 if the variable is signed.

In general, non-widening multiplies give the same result for signed and
unsigned variables.

-- Jamie
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